James h



No. 751,725. I 'PATENTED FEB. 9, 1904.

J. H. PARRAR.

SWIVEL LOOM.

APPLICATION FILED OUT. 1, 1903.

N0 MODEL.

INVENTORI WiTNESSES:

' ATTORNEYS UNITED STATES Patented February 9, 1904.

PATENT OFFICE.

JAMES H. FARRAR, OF DUNDEE LAKE, NEWV JERSEY, ASSIGNOR TO HENRY DOHERTY,OF PATERSON, NEW JERSEY.

SWlVEL-LQQNI.

SPECIFICATION forming part of Letters Patent No. 751,725, dated.February 9, 1904.

Application filed October 1, 1903.

To all whom it may concern:

Be it known that I, JAMES H. FARRAR, a citizen of the United States,residing in Dundee Lake, in the county of Bergen and State of NewJersey, have invented certain new and useful Improvements inSwivel-Looms; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters andfigures of reference marked thereon, which form a part of thisspecification.

This invention relates to swivel-looms, and it has referenceparticularly to that part of the mechanism of such looms which comprisesthe means for driving the main or fly shuttle, the means for driving theswivel-shuttles, and the means for throwing the one of said drivingmeans into and the other out of action, according as the one or theother is called.

The invention will be found fully illustrated in the accompanyingdrawings, wherein Figure 1 is a view in side elevation of a portion of aswivel-loom constructed in accordance with my invention. Fig. 2 is aview in front elevation of the upper portion of the loom, showing adobby or other form of head motion from whence the calling of therespective classes of shuttles is effected. Fig. 3 is a top plan view ofthe near end of the loom as shown in Fig. 1 and illustrating some essential parts of the invention. Fig. iis afront view of a detail showinga portion of what is seen in Fig. 8. Fig. 5 is a view in side elevationof a certain clutch, and Fig. 6 is a diagrammatic view illustrating themeans for raising and lowering the swivel-batten.

In the loom-frame a is journaled the usual cam or tappet shaft 5.

c is one of the picker-sticks pivoted in a rocking frame (Z. In bearingsf is journaled a shaft 9, which carries an upwardly-projecting crank it,connected with the picker-stick in the usual manner by a strap c'. Onthis shaft g is an arm 3', projecting inwardly and having its free endbifurcated. In the bifurcated portion of the arm is a pivoting bolt is,

Serial No. 175,288. (No model.)

on which is fixed a block Z, which carries an antifriction-roller m.Then the block and its roller form an alined on longitudinal extensionof the arm j, the cam n on cam-shaft b will as it rotates impingeagainst the roller and depress the arm, thus rocking the rock-shaft gand vibrating the picker-stick in an obvious manner. When the block isturned on its pivot in arm j to the right sufliciently to clear the cama, the shaft g will ceaseto be rocked, and consequently the picker-stickwill stand idle. The means for controlling the position of block will belater described.

On the cam-shaft Z2 is fixed a collar 0, and arranged to turn on theshaft is a mutilated gear 9, having a lateral flange q. The flange isformed with a break or opening, as at r, the same being disposedadjacent the teeth s (relatively few in number) of the mutilated gear.

t is a hook pawl pivoted on the inner face of the gear 19 and adapted toengage inanotch u in the collar 0, so that when the shaft is rotating inthe direction of the arrow in Fig. 5 the collar will drive the gear. Ina bracket 10 is journaled a stub-shaft Q), on which is fixed a pinion w,a star-wheel w, and a crank The pinion is adapted to be engaged by theteeth of the mutilated gear 9, so that the shaft o may be driven fromshaft 6, and the starwheel 90 has the peripheral indentations a thereofformed to fit the periphery of the flange g of gear ya, so that betweenthe pinion and star-wheel and the gear 19 and its flange is produced themechanical movement known as the Geneva stop-motion. The crank y isconnected with a crank 1 on the lower end of a rod 2, journaled in abracket 2, project' ing from the rocking frame (Z, in which thepicker-stick is fulcrumed by a system of levers comprising a bell-cranklever 3, fulcrumed in the frame a, a link t connecting one end of saidbell-crank lever with the crank 3/ and a link 5 connecting the other endof said bell-crank lever with the crank 1. The rod 2 carries at itsupper end a crank 3, which is in turn connected, as by a link orotherwise, with the swivel-shuttle rack ina manner well known. (SeeUnited States Letters Patent No. 691,927.)

From the foregoing it will be seen that so long as the pawl z, ispermitted to lock the collar and gear 9 an intermittent reciprocatingand dwell motion will be imparted to the shuttle-rack. If the pawl t isdisengaged, however, from the collar 16, the latter will continue torotate with the shaft without driving the gear 19, and by consequencewithout oscillating the rod 2 through the mechanism which connects saidgear with the rod.

6 is a lever fulcrumed in the loom-frame (0'. This lever is controlledfrom one of the jacks 7 of the dobby or other form of head-motion 8through a flexible connection 9, passing over a segment 10, fulcrumed at11 in the frame a. To one arm of lever 6 is connected the upper end of aflexible connection 12, which is in turn connected to the free end of adog 13, which hooks over the free end or point 14: of the pawl t. Thesame arm of lever 6 is connected with a lever 15, fulcrumed in frame aby a link 16. On the pivoting-bolt 7c is fixed a drum 17, to which theend of a chain 18 is fixed and around which said chain is adapted toextend. This chain is connected with the lever 15 by a link 19. A spring20, coiled about the bolt is and inclosed in the drum, tends to turn thesame, so as to wind the chain thereon, one end of said spring being forthis purpose fixed to the arm j and the other end to the drum.

The swivel-batten 21 acts by gravity to drop into working position. Itis adapted to be elevated by flexible devices 22, which are connected attheir free ends to the guide-rods 23 of the swivel-batten and extendover rollers 24 and under rollers 25 on the main batten structure 26,whereupon they merge into a common flexible connection 27, which isconnected to the lever 6.

28 is a spring connecting the lever 6 with the frame in such manner asto pull up on the connection 27 and so tend to normally keep theswivel-batten elevated.

Before describing the operation it should be particularly remarked, withreference to the operation of dog 13 and pawl t, that when the former isallowed to'drop by the lowering of the adjacent end of lever 6 it actsto lift pawl 14 out of engagement with collar 0, but that when it israised it clears the pawl and permits the latter to stand interlockedwith the collar 0.

This effect is the result of. that disposition of the two fulcrums-z1 e.of the dog and pawlat the time when the pawl is most proximate the dog,whereby if the dog is lowered sufliciently to engage the pawl the latteras it rotates with the gear will have its end 14 caught by the dog, andso drawn out of engagement with the collar 0 in the manner indicated inFig. 5, whereas if, on the other hand, the dog is lifted sufficiently toclear the pawl the latter will continue to interlock the collar and thegear as they rotate.

As the parts are shown in Fig. 1 the jack 7 stands in the position wherethe left-hand end of lever 6 is lowered. The swivel-batten is thereforeelevated, so that its shuttles are clear of the shed, and dog 13 is alsolowered, thus acting to hold pawl 25 disengaged from collar 0, whilespring 20 is permitted to act tothrow the block Z into alineddisposition with reference to arm 7', so that the roller m is inposition to be impinged by the cam a. If shaft 6 is rotating, cam n willnow act through the arm jto rock shaft 9, and so work the pickerstickand consequently the main or fly shuttle.

Upon jack 7 being actuated to pull on flexible connection 9 theleft-hand end of lever 6 will be raised, causing in an obvious mannerthe depressing of the swivel-batten into working position and theraising of dog 13 out of engagement with pawl t and the turning of blockZon its pivot is far enough so that its roller is clear of cam 72. Thusrock-shaft g will not be vibrated, and consequently the picker-stick andthe fly-shuttle will stand idle, while pawl 2? will be permitted to dropdown onto the periphery of collar 0, so that as the latter rotates thepawl will be brought into engagement with notch 16, and thus interlockthe collar and the gear. So long as the dog is permitted to standelevated the rotary action of shaft 6 will act to oscillate rod 2through the parts now made to connect said rod with the shaft in anobvious manner, with the result that to the swivel-shuttle rack will beimparted the desired reciprocating and dwell movement.

It will be observed that adhesion between parts 10 and b as the formerrotates and the checking of'any tendency toward consequent movement ofpart 3) with part a by the pawls engaging with dog 13 would operate moreor less to induce a vibratory action in part 19. This may be preventedby providing a notch 29 in the periphery of the gear 19 and a checkpawl30 to engage said notch. This checkpawl is pivoted on a stud 31 (onwhich dog 13 is also pivoted) and is so disposed that at the limit ofupward movement of the pawl 27 when engaged by dog 13 it takes in thenotch and stops the vibratory effect.

32 is a pin carried by check-pawl 30 and extending over the dog 13,sothat when the latter is lifted by lever 6 the check-pawl will be lifted.

The function of the segment 10 is to protract the length of time thatthe swivel-batten is in working position, so as to give theswivelshuttles full opportunity to act. The result obtained is due tothe fact that when the jack is pulling upwardly on the flexibleconnection 9 and while it is approaching its limit in this directionsaid connection 9 is opposed to the flat surface of the segment, withthe consequence that the movement slows down more gradually and soonerthan if part 10. were perfectly circular, and, vice versa, on the returnmovement the action is slow at first and then relatively quick.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a swivel-loom, the combination of the frame, a rotary shaft, anoscillatory swivelshuttle-rack-driving rod, means for transmittingmotion from the shaft to the rod comprising a part arranged to turnloosely on the shaft, a peripherally-notched collar fixed on the shaft,a pawl carried by said part and adapted to engage in said notch tointerlock said part and the collar, and a dog having a pivot remote fromthat of the pawl and movable into engagement therewith to disengage thesame from the collar, substantially as described.

2. In a loom, the combination, with the frame, of the cam-shaft, apicker-stick, a vibratory part, operative connecting means between thevibratory part and the picker-stick, and another part carried by saidvibratory part and pivoted in the same, said part being movable into andout of the path of movement of the cam on said cam-shaft, substantiallyas described.

3. In a loom, the combination, with the frame, of the cam-shaft, apicker-stick, a vibratory part, operative connecting means between thevibratory part and the picker-stick, another part carried by saidvibratory part and pivoted in the same, said part being movable into andout of the path of movement of the cam on said cam-shaft, and means fornormally holding said last-named part in the path of said cam on saidcam-shaft, substantially as described.

4:. In a loom, the combination, with the frame, of the cam-shaft, apicker-stick, a vibratory part, operative connecting means between thevibratory part and the picker-stick, another part carried by saidvibratory part and pivoted in the same, a spring connecting the pivotedpart and the vibratory part and normally holding the former in a givenposition, and means for moving the pivoted part against the tension ofits spring, substantially as described.

5. In a swivel-loom, the combination of the frame, a rotary shaft, anoscillatory swivelshuttle-rack-driving rod, means for transmittingmotion from the shaft to the rod comprising a part arranged to turnloosely on the shaft, a peripherally-notched collar fixed on the shaft,a pawl carried by said part, adapted to engage in said notch tointerlock said part and the collar and having its free end projecting inthe direction of rotation of the shaft, a dog pivoted independently ofsaid part and adapted to project into the path of movement of the pawlto engage the same and cause the unlocking of said part and the shaftand the stopping of rotation of the former, and a checkpawl engageablewith said part and acting thereon reversely to said dog, substantiallyas described.

I 6. In a swivel-loom, the combination of the frame, the main battenstructure, the elevatory swivel-shuttle batten arranged in said mainbatten structure, an actuating means, a flexible connecting meansbetween the swivelshuttle batten and said actuating means, and a segmentpivoted in said frame, said flexible connection being extended aroundthe segment and having a movement with the actuating part suflicient tobring the flat side of the segment adjacent said flexible connection,substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this29th day of September, 1903.

JAMES H. FARRAR.

IVitnesses:

J OHN W. STEWARD, ROBERT J. POLLI'IT.

